دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: an attachment to a natural gas line for a burner head that forms a burner port modified for a specific application. The burner tip represents the end of the transportation of natural gas from the wellhead and includes its consumption. By definition, it also includes its consumption as a feedstock (an ingredient in manufactured products) and its use in pipeline operations and other overhead activities.

n: material other than a catalyst introduced into a plant for processing. With regard to natural gas, used as an essential component of a process for the production of a product. Use of gas as a feedstock may be required because of the chemical reaction involved, or because of the physical burning characteristics of gas compared with other fuels, such as temperature and by-products. Examples of feedstock use include fertiliser manufacture, glass manufacture, and white brick manufacture.

n: a by-product of refining used as boiler fuel, but with value as petrochemical feedstock. Composed mainly of ethane, ethylene, propane, propylene, butane, and hydrogen.

n: a substance that consists of large rnolecules formed frorn srnaller rnolecules in repeating structural units (rnonomers). In oilfield operations, various types of polymers are used to thicken drilling rnud, frac- turing fluid, acid, water, and other liquids. See micellar-polymer flooding, polymer mud. In petroleum refining, heat and pressure are used to polyrnerize light hydrocarbons into larger rnolecules, such as those that rnake up high-octane gasoline. In petrochernical production, polymer hydrocarbons are used as a feedstock for plastics.

a synthetic or man made gelling agent that increases viscosity and helps control leakoff.